Open furnace bottom, increase steam charging steam valve to ensure normal pressure quantity of gas stove.
开启炉底蒸汽阀，增大蒸汽入炉量以确保煤气炉正常压力。
A flash empurpled all the facades in the street as though the door of a furnace had been flung open, and hastily closed again.
火光一闪，把街旁的房屋照成紫色，好象有个火炉的门突然开了一下，又立即闭上似的。
To introduce the technology reform of oil burning open fire furnace. The heat treatment control principle of the open fire furnace and its adopting measures are introduced emphatically.
介绍燃油明火加热炉的技术改造，着重介绍明火加热炉热工控制的原理以及采取的措施。
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